mux: Rust modernization — edition 2024, MSRV 1.88, latest deps, workspace lints - #7657

Bugbot Analysis Progress (1m 27s elapsed)

✅ Gathered PR context (6s)
✅ Completed bug detection (1m 21s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_8a75ac40-195a-42c4-a186-9a56f6499907